Flat locking slider for fasteners



Jan. 7, 1941, D.MARINSKY -2.223,142

FLAT LOCKING SLIDER FOR FAS'IENERS Filed Jan. 26, 1939 ATTORNE faces of the links or scoops; that is when plated, enamelled, or otherwise coated links or scoops are employed, the upper surfaces-thereof cannot be marred or otherwise destroyed, anti further, no wear can appear 011 a. link or scoop of any type or kind. The term upper surfaces refers to the surfaces of the links or scoops as seen in Fig. 1.

It will also be apparent tha the pull 2l is coustructed cf resilient or springy material so tensionedas to normally assume a position similar to tha.t illustrated in full lines in Fig. 1, capable of outward flexure by engagement of the 1::ams I6 as is illustrated in Fig. 3.

The invention is applicable to metallic type of fasteners of the Kind under consideration wherein all of the par ts are composed of metal, but is also applicable to fasteners wherein the links or scoops may be composed of plastic materials and further wherein the slidermay be composed of plastic materials, und in fact, in using certain plastic materials such for example as cellulose acetate lt is possible to use this material in the sonstruction o1 the pull, cellulose acetate having suflicient spring properties to produce the desired result.

It will oi! course be apparent that with a. structure o! the kind, under consideration, the lock element end 20a o! the pull operates in the Iorm of a wedge or key, movable transversely with respect to the slider. Any Stress or stra.in on this elemerit is not transmittable to the pull. und thus a. positive lgcking 01 the slider is provided a.t all times, und when the slider is strained to move longitudlnally 01 the stringers by a tendency to separate the stringers as is experienced in the use of fastening devices o! this klnd upon certain articles and garments. It will also ppear that the cam portions I8 in addition to operating to rele'ase the lock element. also cooperate with the pull tosupport the same in either the i!ull or dotted line position showh in Fig. 1. In these positions o1 the pull lt will be understood that the upper surtaces o1 the pull are arranged below the upper or outer surtace 9a 01 the wall 9, so that the pull does not protrude beyond the suriace 9a. It will also appear that the contour 01 the pull 2l is such as to fit over the end I3a 01 the top well 9 oi the slider as is clearly illustrated in dot.

and dash lines in Fig. 1 01 the drawing.

' From the foregoing lt will appear that in additlon to providing a very simple practical end yet streng and durable form 013 lock i.or sllders o! the kind under consideration. lt is also possible to produce a slider body whlch will be considerably thinner than the conventional forms 01 sliders, and thus properly termed a flat slider. The advantage o! this construction is that in addltion to forming a neat and flnished appearance, lt also l'acilitates the laundering, preSsing end handling pi! the device es applied to merchandise o! various kinds and classes.

A slider 01 the kind under consideration adapts itself i!or use in the conventional locking type 01 slider as well as what is termed a reverse lock slider, suita.ble for use (m leggings and other articles 015 apparel und merchandise where the normal wide end portion 01' the slider hangs downwardly when the Iastener is in closed posltion. In both posltions the slider is securely retained against z povement on the stringers.

It will also appear that my invention, insofar as the flat slider constructionis concemed. is x:0t

necessarily restrlcted i'0r use in connection with lock sliders, in which latter event other Turms cf pulls may be employed end the camming surfaces IG may be dispensed with, aside Irom the desirabilitmoi! using such surfaces or'their equivalents l'or supporting the pull in either 01 the positions indicated in Fig. 1.

It will appea.r th'at one oiythe principles 01 my invention is in the-provision o! a. lockin element which is movably supported in the peripheral side eglge portion 01 the slider body to enter the channel thereof so as. to engage the links or scoops o! at least one stringer where mounted upon the stringer tape, and Iurther to engage side surfaces 01' the links or scoops below the upper surface thereof, the advantages o! the latter structure having been. heretoi'ore sei; forth.

It will 01 cou1se be apparent tha.t both pivot ends 20, 20a may be 01 sufilcient length to enter the channels so tha.t either o1 these ends may engage the stringer links l or 1a. In a balanced m'ounting of the pull 015 course only one pivot end ca.n function; It lt be desired to otherwise mount the pull. then both ends can be moved into locking position.

Having fully described my invention, what I claim as new end desire to secure by Letters Pat ent, is:

l. A-slider for separable fastener stringers 015 the dass described, said slider comprising a, channeled body having spaced top and bottom walls, the bottom wall haVing diverging channels at one end b0unded by inturned side flanges extending to the other end of said wall, the top.wall having at opposite sides thereof enlarged flange portions inner surfaces of which are in alinement with the inner surfaces of the flanges of said bottom wall for a portion of the length thereof,

adjacent the inwardly exten ding ends thereof being resilient, and said slider having acljacent the apertures therein cam surfaces adapted to flex said ends outwardly in the pii0tal moveme nt of saidpull into elevated position with respect to said slider. v

- .2. A slider for separable fastener stringers oi the class described, said slider eomprlsing a channeled body having spaced top and bottom walls, the bottom wall having diverging channels at one end bOunded by inturned side fianges extending to the other end of said wall, the top wall having a.t opposite sides thereof enlarged flange portlons, inner surtaces 01 which are in alinement with the inner surfaces 01 the flanes of said bottom wall for a portiqn 'of the length thereof, said top Wall having substantially parallel side edges; said vva.ll being 01 less width than the width of the firstnamed end portion o! the bottom wa1l und o! greater width than the other end portion 01 the bottom well, the enlarged flange portions ot said top wall having apertures arranged in transverse alinement with each other opening outwardly through the side edges of the top wall anti into the channel of the slider, a

yoke-shaped pull having lnwardly extending ends pivotally arranged in said apertures, said pull adja.oant the inwardly extending ends thereof beins 1lesilient, said slider having adjacent the spertures thereln cam surtaces adapted to flex s a.id ends outwardly in the plvotal, movement o! sald pull lnto elevated posltlon wlth respect 120 'said sllder one 01 the plvot end.s o! sald pull beinz langer tha.n the other anal normally extending into the cha.nnel o! the sllder and adapted to be wlthdrawn trom sa.ld channel in the plvotal movement; 01 sa;ld pull over sald cam surtaces.

3. A slider Ior separable Iastener strlngers 01 the cl-ass described, sa'id slider comprising a channeled body havlng spaced top' und. bottom walls, the bottom wa-ll having diverging channels ab one; end bounded by alnturned side flanges extending to the other end 01 sa.ld wall, the top wall having a.t opposite sides thereo! emlarzed -flange pqrtlons, 1nner surfaces 015 which are in alinement wlth;

the lnner surI-aces 01 the flanges 01 sald bottom wa.ll Ior a. portion 01 the length thereof, sa.ld top wall having substantlally parallel slde edges, said wa-ll being 01 lesg wlclth tha.n the wldth o! the first named end. portalon o1. the bottom wall and 01 greater wldth than the other end portion of the bottom wall. the enlarged flange portions o1 sadd top wall having apertures arranged in transverse ay.linement wlth ea.ch other openlng outwardly through the side edges of the top wall a.nd lnto the channel o1. the sllder, a, 37oke-shaped pull having resilleht lnwardly extendlng plvot ends arranged in sald apertures, one of sald ends extending into the channel o1 sald sllder ln engaglng the links, and saidslider having camming means adjacent sa.ld last named inwa rdly extending end of the .pull i'or flexlng sald resllient end in the plvotal movement 01 the pull, thereby wlthdrawlnz said end trom said 'channel.

4. A slider-tor separable fastener stringers of the dass descrlbed, sald slider comprising a channeled body having spaced top anti bottom Walls,

- the bottom Wall havlng diverging channels ab one the inner surfaces 01 the flanges o1 sa.id bottom wall Ior a portion o! the length thereof, the enlarged flange portions o1 said top Wall having apertures arran8ed in transverse allnement with ez 1ch other openlng outwardly through the slde edges 01 the top Wall and lnto the cha.nnel o! the sllder, a. yoke-shaped pull ha.ving resillent inwa-rdly extendlng pivot ends arrianged 1x 1 sa.id apertures, one 01 said ends extendlng lnto the channel 01 said sliderln engaging the links, sald sllder havlng camming mea.ns axljacent sald last named inwardly extendlng end 01 the pull for flexlng salcl resillent end in the plvotal movement 01 the pull, thereby withdrawln: sa1d end 2mm sa.ld

surfaces, a yoke-shaped pull having inwardly sei:

pivot ends arranged in said apertures, and the pull havlng spring prope rbies normally supporting sald ends, in inwardly extendecl positlon with a.t least one 0I said ends protruding into the channel of the slider to Iorm a Jack element controlling movement of the slider when the pull ls arranged substantially in horizontal position with respect 1:0 the sllder, whereby in the upward swingln pivotal movement of the pull sald cam surfaces will y-ieldablywlthqlraw the lock element Irom the channel 01 the .slider.

6. A lock slider Ior separable fastener stringers ot the class descrlbed comprising a channeled body movable along the stringers tq couple und unoouple the Same, said body having flanged side edges, a resillent lock element pivotally supported in connection with the slider und having at least one part; supported in an aperture in one o1'- said flanged edges and mo vable transvemely o! the sllder to extend into the channel thereof in adirection substantially at right angles to the movement cf the stningers through sald channel, sald element yieldably supporting sa.id part in posltlon extendlng lnto the channel of the slider,

and means on the sllder associated and. Cooperatslider.

7. The' combination with channeled sllder body for separable tastener strlngers having aperbures in opposed side portions of the body and openlng into the channel thereot, 01 a. -yokeshaped pull havlng spring arms terminating in inwarclly exbended plvot ends arranged in the apertures 015 saicl sllder and normally held in 111- wardly extended positions by the resilient properties cf sald pull to nox mally extend a.t least one o1 sald plvot; ends into the channel o1 the slider to -form a lbck element, and said slider havlng a. cam surface adjacent the plvot end o1 the pull und cooperablng with the arm supportlng said lock element whereby in pivotal mo vement o! the pull inbo ralsed position 011 the slider the arm wil.

ansage said cam sur1'ace to Wlthdraw the lock 

